Browse Prior Art Database

Error Sensing and Storage Device

IP.com Disclosure Number: IPCOM000098865D
Original Publication Date: 1958-Aug-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Laurer, GJ: AUTHOR

Abstract

Visual indication of an error in a computer or other like machines is provided by neon lamps connected between plates of associated thyratrons and a supply voltage. The neons may be normally either on or off and will change state when an error is detected and stored by the associated thyratrons.

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Error Sensing and Storage Device

Visual indication of an error in a computer or other like machines is provided by neon lamps connected between plates of associated thyratrons and a supply voltage. The neons may be normally either on or off and will change state when an error is detected and stored by the associated thyratrons.

In the quiescent condition with none of the thyratrons conducting, the output voltage E(o) is substantially equal to E(b). Upon rendering one of the thyratrons conductive by a signal to its grids, the plate potential drops below E(b) due to the potential drop across the plate load resistor. This change in potential will affect the associated neon and cause it to change from its normal condition. The drop in plate potential will also be reflected at E(o) as a common error signal. Diodes are connected in the plate circuits of the thyratrons so that the conduction of one thyratron will only affect its associated neon. The circuit may be reset to its quiescent condition by removing or decreasing E(b) to extinguish the thyratrons.

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